SOA SOACP S90-08A Questions & Answers

• Question 91:

  Governance can become an issue with service agents because:

  A. You will need to determine who will own and maintain the service agents.

  B. Changes to a single service agent can impact multiple services throughout a service inventory.

  C. Service agents need to be versioned, just like services.

  D. All of the above.

  Correct Answer: D

• Question 92:

  Which of the following patterns may also require the application of the Service Agent pattern?

  A. Reliable Messaging

  B. Asynchronous Queuing

  C. Intermediate Routing

  D. Policy Centralization

  Correct Answer: ABCD

• Question 93:

  Which statement regarding intermediate routing is true?

  A. The application of the Intermediate Routing pattern is suitable for handling message routing requirements that are dynamic in nature and difficult to anticipate in advance.

  B. The application of the Intermediate Routing pattern is suitable for handling pre- determined message paths with fixed routing requirements that cannot be changed at runtime.

  C. The application of the Intermediate Routing pattern tends to improve runtime performance when compared to an approach whereby routing logic is embedded within individual services.

  D. None of these statements are true.

  Correct Answer: A

• Question 94:

  Which of the following statements is true?

  A. The overuse of service agents can lead to dependencies on proprietary vendor platforms.

  B. The use of service agents is limited to the service architecture.

  C. Service agents are common in orchestration environments but not within enterprise service bus environments.

  D. None of these statements are true.

  Correct Answer: A

• Question 95:

  A service agent has a technical contract that allows it to be explicitly invoked by service consumer programs.

  A. True

  B. False

  Correct Answer: B

• Question 96:

  Which of the following functions would not be suitable for a typical service agent?

  A. event logging

  B. message routing

  C. complex Web service composition

  D. error logging

  Correct Answer: C

• Question 97:

  The use of service agents will affect the design of service compositions as follows:

  A. it will tend to increase the number of required services

  B. it will tend to decrease the number of required services

  C. it will tend to increase the number of required service compositions

  D. it will tend to decrease the number of required service compositions

  Correct Answer: B

• Question 98:

  The Messaging Metadata pattern requires a messaging framework that supports the processing of messages with headers or properties.

  A. True

  B. False

  Correct Answer: A

• Question 99:

  Which of the following statements is false?

  A. Widespread use of the Messaging Metadata pattern can be seen in the emergence of many WS-* extensions that define industry standard SOAP header blocks that carry metadata.

  B. Messaging frameworks and technologies need to provide support for the reading and writing of message headers or properties in order to fully support the application of the Messaging Metadata pattern.

  C. The Messaging Metadata pattern is not applicable to situations where the message sender and receiver need to participate in stateful or conversational message exchanges.

  D. The Messaging Metadata pattern can support the application of patterns such as Intermediate Routing by supplementing messages with activity-specific metadata.

  Correct Answer: C

• Question 100:

  When applying the Messaging Metadata pattern, it is customary to place business document data in the message header and supplementary messaging metadata in the message body.

  A. True

  B. False

  Correct Answer: B